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    <script>
        let grade=prompt(`请输入用户所得分数`)
       if(grade>=90){
        alert(`恭喜您得到法拉利一台`)
       }
      else if(grade>=80){
        alert(`恭喜您得到奥迪一台`)
       }
      else if(grade>=60){
        alert(`恭喜您得到奥托一台`)
       }
      else {
        alert(`恭喜您得到打耳光一个`)
       }
      
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